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Fundamentals of Computer Systems,[object Object],GCSE Computing Theory,[object Object]
Get your brains logged on!,[object Object],In your books write today’s title “Fundamentals of Computer Systems”.,[object Object],Write down your own definition of what is a computer system.,[object Object],What do you think are the key components of a computer system?,[object Object]
Get your brains logged on!,[object Object],At its very basic, a computer system nothing more than an input, a processor and an output.,[object Object],A system will usually have some storage capability, e.g. a hard drive.,[object Object],More often now a system will have a way of communicating with other devices, e.g. wifi, bluetooth, network adapter.,[object Object]
By the end of this lesson:,[object Object],All of you will be able to define a computer system and describe the importance of computer systems in today’s world.,[object Object],Most of you will be able to explain the need for reliability and adherence to professional standards, use and maintenance of computers systems.,[object Object],A few of you will understand the ethical, environmental and legal impacts of computer systems.,[object Object]
Importance of Computer Systems,[object Object],Computers are all around us and I’m not just talking about your desktop or laptop computer.  Your “smartphone”, your games console, your ipad, even your Sky+ or freeview recorder is a computer system of sorts.,[object Object],Computer systems are integral parts of our lives.  Working in pairs, list down in your books all the computer systems you or your parents use regularly.,[object Object]
Examples of Computer Systems,[object Object]
System Reliability,[object Object],Go to: http://tinyurl.com/supermarketchaos,[object Object],Read through the web article and answer the following questions in your books:,[object Object],What caused the chaos?,[object Object],What impact did this have on the customers?,[object Object],What impact did this have on the supermarkets affected?,[object Object],How could the supermarkets have prevented or minimised the chaos?,[object Object]
Standards,[object Object],Without standards to adhere to we risk developing systems that are not compatible with each other.,[object Object],Would you be happy if your Nokia mobile could only call other Nokia mobiles?  ,[object Object],Standards also improve the quality of the computer system and its maintenance by ensuring that best practice is followed and people don’t cut corners.,[object Object]
Legal, Environmental and Ethical considerations,[object Object]

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Fundamentals of computer systems

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Hinweis der Redaktion

  1. Since we rely so much on technology there are huge problems when it goes wrong! If a supermarket checkout system goes down this could result in lost sales of thousands of pounds.However, if an automated system, like those onboard aircraft fails then it could end in disaster!